Leek Manilakhang is located at Leek village, upper Dzongu, North Sikkim. It was built in 1967 A.D. by the public to offer their periodical pujas on the land donated by Lt. Tumlukung Lepcha. The Altar contains portraits of Buddha, Chenrezig and Guru Rinpoche. Besides these, there are 08 Bum texts and 10 Kangyur Texts, which was donated by Kussung Tshampo. It follows Nyingmapa Sect.